BMS 3000-OBLC

Brinell Hardness Tester

BMS Bulut Makina Sanayi Ve Ticaret Ltd. Şti. İkitelli Organize Sanayi Bölgesi Dolapdere Sanayi Sitesi

Ada 4 No : 7-9 Başakşehir / İSTANBUL-TURKEY Phone : +90 212 671 02 24 / 671 02 25 Fax : +90 212 671 02 26

web : www.bulutmak.com e-mail : bms@bulutmak.com

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1. Technical Features ........................................................................................... 3 2. Standart Accessories ....................................................................................... 3 3. Installment and Adjustment ......................................................................... 3

3.1. Unpacking and Installation ...................................................................... 3 4. Key Function ..................................................................................................... 4

4.1. Operation Panel Function ......................................................................... 4 4.2. Display Interface ........................................................................................ 5 4.3. Use ................................................................................................................. 7

5. Adjustment & Attention ................................................................................. 9 6. Electric Principle Introduction ................................................................... 10 7. Use of Microscope .......................................................................................... 10

7.1. Zeroing of Micrometer Eyepiece ............................................................ 11 7.2. Test Indention Diameter ......................................................................... 11 7.3.How to Read Drum Wheel ........................................................................ 13

8. Brinell Hardness Calculation ...................................................................... 13

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1. Technical Features 1.1 Test force： 612.9N（62.5kgf） 4900N（500kgf）

980N（100kgf） 7355N(750kgf)

1225N（125kgf） 9800N（1000kgf）

1839N（187.5kgf） 14700N（1500kgf）

2452N（250kgf） 29400（3000kgf）

1.2 Operating system : Loadcell

1.3 Hardness Test Range：8～650HBW

1.4 Microscope magnification：15X

1.5 Micrometer drum Min value：0.01mm

1.6 Max testing height：240mm

1.7 Depth of throat：130mm

1.8 Power supply ：AC220V/50Hz

1.9 Dimensions ：（760×530×185）mm

1.10 Weight：120kg

2. Standart Accessories Φ2.5、Φ5、Φ10 mm ball indenter One of each

Flat testing table , and V testing anvil One of each

HBW/10/3000 Test block 1

HBW/5/750 Test block 1

Calibration Certificate 1

Manual 1

Dust cover 1

3. Installment and Adjustment

3.1. Unpacking and Installation 3.1.1 Unscrew the four nuts outside the box below, lifting hardness tester, remove the four

mounting screws on the bottom, put the hardness tester on suitable bench.

3.1.2 Remove the pads between lifting shaft and indenter shaft, using gasoline to lift anti-rust oil

wipe the top screw until the dry coated amount of thin oil lubrication.

3.1.3 Open the cover and look at the mat knife rack, knife blade is in the pad, if the pad frame

extrusion blade knife, please press the main lever by hand the knife in the knife-edge on the mat

frame set. (This usually does not produce, only in the event of severe cases would occur under

vibration.) (Figure 3) mounted on the roof.

3.1.4 Open power and switch, Hardness tester will be in working condition

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main lever

tool support

shim

nose of tool

Big lever

4. Key Function Figure 4 shows the HBC-3000 Electronic Brinell Hardness Tester front panel. Map the upper half

of the LCD, on the details in later chapters of this manual there will be instructions. Map into the

second half of the keyboard. This chapter will function keys on the keyboard and the LCD display

interface, function and detail.

4.1. Operation Panel Function

Figure 4 Panel function introduction

4.1.1 Based on testing requirements, there are 612.5 ~ 29400N total of 10 test force, according to

the selected test force, the corresponding indicator lights

4.1.2 Test condition display: 3 phases, loading, unloading, and dwell, which the light will show.

4.1.3 Key functions:

<SETUP>Continuous press <SETUP> twice, setting interface will appear on the LCD on (see

Figure 7). You can press the <↓> and <↑> select the adjustment options

<DELETE>Interface in loading, unloading state, press this button twice to return to the initial

interface.

<STOP>Click this button for a halt to loading and unloading state, into the calculation of the

interface.

Figure 3

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<OK> Click this key once confirm your operation selected, twice to save specifications set.

〈C〉（delete ）When in initial interface, Press this button into the calculation of the interface

(see Figure 5), when the input error in diameter, clear the input error values.

Figure 5 Calculating interface

Number keys：<0>，<1>，… … <9>

Brinell hardness calculation formula stored in hardness within the integrated calculator. You

can measure the number keys to enter the reading obtained hardness value calculator.

The diameter of your input and press <OK> reading, the system will automatically convert the

diameter of the length of the value, press <OK> to confirm, then the corresponding hardness

results will be displayed on the screen.

If you enter a number in error, you can press before the press <C> <OK> key to delete the

number entered.

<PRINT>

If you choose printing out, please click <PRINT>, (printer is optional accessory)

4.2. Display Interface 4.2.1 Open power, you listen “di di “ , initial interface displayed, this time LED lit, electric motor test,

then again” di di” , auto-test normal. Display initial interface(figure 6)

Figure 6 initial interface

4.2.2 Dwell time setting

Press twice to enter t <SETUP> interface (see Figure 7), press the <↑>, <↓> to move the

cursor to <DWELL>, press <→>, <←>, on the dwell time (1 ~ 60 seconds) set (boot to set the time

for the 15S).

HBW

D1：0.000mm FORCE: 62.5kgf

D2：0.000mm DWELL: 10S

DATA/TIME: No:

DWELL<S> 15S INDENTER 2.5 5 10

FORCE(kgf) 62.5 100 125 187.5

250 500 750

1000 1500 3000

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Figure 7 Interface setting

4.2.3 Indenter size selection

Setting interface (figure 7) by <↑>, <↓> to move the cursor to <INDENTER> and click <→>,

<←>, to choose indenter size , the menu 2.5, 5, 10, respectively, in diameter Φ2.5, Φ5, Φ10mm

(starting set of specifications is Φ2.5).

4.2.4 Test force selection

Set interface (see Figure 7), by pressing <↑>, <↓> to move the cursor to <FORCE>, press

<→>, <←>, choose the test force. When the cursor will select the header and the pressure

corresponding to the diameter of the test force jump move (not corresponding to the cursor Test

Force will not be selected).

Note: According to the Brinell hardness test, pressure test header diameter and have a certain

power relationship, not an arbitrary choice, should meet the Table 3.

4.2.5 Select test mode

Set interface (see Figure 7), by pressing <↑>, <↓> to move the cursor to <ALOAD>, press

<→>, <←>, select the measurement mode (boot settings for the automatic measurement AUTO) .

After the settings finished, press the key<OK> once to determine the selected operation , and

then <OK> key save the settings parameters ,system get into the working interface, "LOADING"

flashing (see Figure 8).

Figure 8 interface

Note: The initial dwell time setting is 15 seconds, indenter diameter is Φ2.5mm, test force is 612.9N into-

test state, it goes back to initial position after every time boot.

4.2.6 Alarm

System in the loading state with automatic detection, once loading, leveraged position over

the lower limit, the system will automatically detect the alarm after the jump menu (see Figure 9),

this time by automatically unloading <OK> key machine, unloading successful Back to the working

interface.

ALOAD AUTO MANULE

<OK>:SAVE <STOP>:EXIT

LOADING

0.0 Kgf DWELL：15S FORCE：500Kgf

ALOAD: AUTO

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Figure 9 Alarm menu

4.3. Use

4.3.1 Installation of indenter: make the indenter into the hole axis, rotating set screws (2), soft

reduction in pressure to the axis of the flat head position, and then try to install the lift station

directly on the screw, and then try Sample firmly placed on the test platform to ensure the process

does not occur in the test and flexural displacement, rotating roller (4) to test Taiwan rose slowly,

the specimen and pressure head gently touch, rotating set screws tightly, turn the roller, pressure

head and try to block out.

Figure 10 structure

4.3.2 Turn on the power switch, the machine itself to initialize, display the initial interface, a large

lever to enter the work automatically adjust the starting position. Startup force value set in 612.9N

(62.5Kgf) position, the boot time set to 15 seconds, if you want to choose other security forces and

load time testing, please refer to the Features control panel.

4.3.3 After preparation ,Put test piece on stage, Rotate hand wheel , Work piece contact pressure

to be the first test force while also beginning to show, when the test force must be close to

automatic loading values rose slowly to reach the automatic loading value, the device will issue a

ALARM Press <OK> CHECK

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4

1. upper cover

2. elevating screw

3. switch

4. nut

5. turntable

6. eyepiece

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"beep" sound, and stop and turn the hand wheel, loading indicator light, power automatically load

test run to reach the selected force value, the security charge started, security charge indicator

lights, loading light is off, and the countdown time until the end of Dutch insurance, insurance

charge indicator off, automatic unloading, and unloading indicator, after the light has gone out of

unloading, the reverse rotation roller to the work piece and the pressure head torn off and the lever

back to the starting position and turn the dial 5 (Figure10 ) in front of the light source to align

indentation, border observation of the slow counter-clockwise rotation of roller edge 4, until you

find the indentation edge completely clear up, then the measuring position is measured as the

focal plane position, and finally through the eyepiece micrometer 6, measured on the

measurement methods are detailed in Chapter 8.

Test force：

62.5Kgf～250Kgf is 1 file，Auto-loading value≥40Kgf.

500Kgf～3000Kgf is a file，Auto-loading value ≥90Kgf.

Note: Automatic loading hardness value shall be the minimum force value work. Do not operate

the roller will force exceeds this value too much, as slightly larger than this value. When the

hardness started working (AB), the screen does not show the force change process, when the

preview set to reach the test force, the only starting to show.

4.3.4 The choice of test force should make indentation diameter within

0.25D<d<0.6D

d—— Indention diameter (To ensure this value, please select the 0.102F/D2 according Table 1 ,the

value of F units of the formula N. )

D——ball diameter

Figure 1

Material Brinell hardness 0.102F/D2

Steel 30

Cast iron

<140 10

≥140 30

copper and copper alloy

<35 5

35～130 10

>130 30

Light metals and their

alloys

35 2.5

35～80 5，10

>80 10

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4.3.6 Test Force test surface should be perpendicular to the direction of the pilot force hold time: 10

~ 15 seconds of ferrous metals, nonferrous metals, 30 seconds, when the hardness is less than

35HBW 60 seconds.

4.3.7 Center distance of indentation from the edge of the sample should not be less than 2.5 times

the average diameter of indentation; the center distance between two adjacent indentations should

not be less than 3 times the average diameter of indentation. Hardness is less than 35 HB, the

above distance should be the average diameter of indentation, respectively 3 times and 6 times. If

you do not follow the standard test, indentation will appear asymmetry, hardness values appear

high or low, without proper testing data. Should be perpendicular to the direction of the two

measured indentation diameter, and whichever is the arithmetic average of the difference in

diameter indentation two smaller diameter should not exceed 2%.

4.3.8 Sample should be made of smooth surface, its surface roughness should not be less than

1.6, if the ball diameter Φ2.5mm, sample roughness should be 0.8 or above, in order to clear the

edge of indentation, to ensure the accuracy of measurements .Sample surface should be no

oxide, plating and surface heat or other contaminants

4.3.9 Hardness test how power level, power at all levels of testing should be used (Table 3) in

nominal value specified.

Figure 3

Hardness Ball diameter

mm

0.102F/D2

（F/D2）

Test forceF

N(Kgf)

HBW 10/3000 10 30 29400(3000)

HBW 10/1500 10 15 14700(1500)

HBW 10/1000 10 10 9800(1000)

HBW 10/500 10 5 4900(500)

HBW 10/250 10 2.5 2450(250)

HBW 10/100 10 1 980(100)

HBW 5/750 5 30 7350(750)

HBW 5/125 5 5 1225(125)

HBW 2.5/187.5 2.5 30 1839(187.5)

HBW 2.5/62.5 2.5 10 613(62.5)

5. Adjustment & Attention 1.2 Hardness tester in the factory , all the screws and caps are also tightened, but increase in use

has been in a positive and negative discharge Hesi rotating rod case, if found that turning the

sound anomaly, please check the pulley Department 2 and the cap is loose, if found loose,

please use the tool and the caps to tight

1.3 Turn on the power switch,lever automatically adjusted to enter the work begins. Electronic

Brinell hardness of the lever on the rise, fall one limit position in the large lever to install the

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rear seat of a proximity switch head. In the main up and down the right side near the back

cover to install two proximity switches, control the major levers of the starting position and the

total trip. A, B 2 are close to the normal close switch A proximity switch. Turn, the motor

rotation, so that increased leverage to get the top A large lever close to the origin position

switch to give the computer, and then ensure that the machines pressure head position is

empty, the machine sensor zero, the electrical switch to reach the lever forward loading for

several load from start position to leverage back to the starting position. Please note that

changes can’t be arbitrarily close to the position switch, proximity switch B is below the lower

limit position and settings. When loading the B close to the switch, the protective role of loading

motor to stop while the display shows "ALARM", according to key reversal <OK> unloading. At

this point note: (1) 0.102F/D2 value properly selected, choose the appropriate value of the

smaller force. (2) The trial stage, not the work piece. (3) Pressure sensor failure. (Shall notify

the factory warranty)

1.4 Instruments will be issued during the unloading of some slight noise, which is automatically

adjusted for loading bodies, is normal.

1.5 In order to continuously improve the quality of the instrument, the Company will appropriately

update the instrument structure, so that the contents of manual with slightly different

equipment, but does not affect the operation function, without notice, please forgive.

6. Electric Principle Introduction HBC-3000 Electronic Brinell hardness change the past, weight-type loading method, using

CPU control and sensor signal acquisition, closed-loop stepper motor control system of loading.

AD converter and a typical value of 25μs, nonlinear ± 1/2LSB.

Electrical works as follows: from the LF-3T Spoke collected sensor signals. After op Zoom, the

input to the AD574, after AD conversion, the voltage analog signals into 12-bit digital signal, and

then processed by the CPU operation, control, motor load, keeps the Netherlands, unloading and

other activities.

7. Use of Microscope

Figure 11 shows the measuring microscope is the hardness part of the optical measurement

system. It can help you observe the specimen and measure the diameter of indentation.

Micrometer eyepiece has two thin, a thin line in the move to remain stationary after indentation at

one end, while the other root is measured by rotating drum, to move to the other end of indentation

diameter. When you think that two lines in diameter and with exactly tangent to the ends, you can

read the measurement readings on the drum and through the panel number keys to enter the

hardness readings on the panel calculator.

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Figure 11 eyepiece

7.1. Zeroing of Micrometer Eyepiece

Micrometer eyepiece of zero is right or not on the measurement accuracy has a direct impact,

before ex-factory zero are adjusted in a correct position. When you first use or after a certain

period of use, you should conduct an inspection of the zero, if the following steps can be offset

adjustment.

7.1.1 Rotate google, until the two eyepiece thin lines are very clear.

7.1.2 Rotate Measuring drum, so that within the eyepiece groove observed two similar moves.

Two similar grooves, the light transmission gap is gradually reduced until the groove between

the two there is no light gap at the critical state, the light transmittance is very weak second-line

tangent, shown in Figure 12.

0

screw hole

Figure 12 two thin close infinite Figure 13 drum reads "0"

7.1.3 Check weather the reading on the measurement drum is the "0", shown in Figure 13

7.1.4 If "0" as has been offset, to take in-depth screw holes Allen wrench, loosen screws, rotate or

move the measuring drum, to drum reads "0" and then locking screw.

7.1.5 Re-exame zero, if there is offset, still can re-adjust the offset according above steps .

7.2. Test Indention Diameter 7.2.1 Move the light source to working position

7.2.2 Rotate google, until the two thin line are very clear. Figure14.

7.2.3 Observe inside the eyepiece image quality. Hand wheel to focus until the image is very clear

indentation

line positioning drum eyepiece Goggles Measuring wheel

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Figure 14 two thin lines within the eyepiece very clear

7.2.4 Rotate the thin positioning drum on left side eyepiece micrometer, so that the left side of the

thin line just stuck in the indentation diameter of the left edge and with the vertical, Figure 15. This

action will move the two lines are together

Figure 15 Move the left edge thin line to the indentation left

7.2.5 Rotate the measuring drum on right side of eyepiece micrometer

measuring drum, just stuck to the right diameter of the right indentation tip. Figure16.

Figure 16 Move the right line to the right indentation tip

7.2.6 D1 column by the number keys enter the measurement in the wheel drum and press <OK>

confirm the readings. How to read drum reading on later in this chapter for instructions.

If you enter a number in error, you can delete by <OK> ago by <C> enter numbers. By <OK>

confirmed, the cursor will automatically jump to D2, D2 asked to enter the number, unit suddenly

meters (cm) is the smallest measuring drum Graduation 0.01mm

7.2.7 Rotate Micrometer eyepiece clockwise 90 °. As observed within the eyepiece. At this point

the other should be vertical with another diameter of indentation.

7.2.8 Rotate line Location drum wheel, so just stuck on the tip indentation. This action will at the

same time move the two lines. Figure17.

Figure 17 Move upper line to the indentation upper edge

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7.2.9 Rotate Measuring drum so that the under line is just stuck under the tip indentation.

Figure 18

Figure 18 Move line to the lower tip of indention

7.2.10 D2 column by the number keys enter the measurement in the wheel drum reading press

<OK> to confirm, the hardness of a bar will show you the test results.

7.2.11 If you are not satisfied with the testing result, You can re-test diameter of indention

according the described steps, them input D1 and D2.

7.3.How to Read Drum Wheel

Shown on Figure 19

You can see the scale of the main ruler is over 2. Therefore, the readings on the main scale

should be 200cmm (suddenly meters). Vice-foot line on the scale just 40 feet on the main line of

coincidence, therefore, deputy ruler of the reading of 40cmm (suddenly meters). The overall

reading of 200 +40 = 240cmm (suddenly meters) that is rotated by 240 cells Drum.

main scaleadding tape

Figure 19 readings on testing wheel

8. Brinell Hardness Calculation When a test is completed, press <STOP> to enter the Brinell hardness calculation <STOP>

menu, sees Figure 20

Figure 20

HBW D1：0.000mm FORCE:62.5Kgf

D2：0.000mm DWELL:15S

DATA/TIME: NO:

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If you choose 612.9N test force, Φ2.5mm ball indenter, calculate the diameter of the

indentation hardness values: Move the cursor to the D1, from the panel number keys, enter 1.029,

click <OK> key to confirm, this time D2 marked jump from the panel number keys, enter 1.031

then <OK> to confirm, and then displayed on the screen 71.7HBW that the Brinell hardness value

of this indentation. Figure 21

Figure 21

71.7 HBW D1：1.029mm FORCE:62.5Kgf

D2：1.031mm DWELL:15S

DATA/TIME: NO:1